Pencil-sharpener.



No. 653,720. Patentedluly l7, I900. N. WEITZEL.

PENCIL SHARPENEB. I (Application filed. Feb. as, 1900.)

-(N0 Model.)

UNITE STATES PATENT QFFICE. I

ISAAC NORD WEITZEL, OF ROCHESTER, NEW YORK.

PENClL-SHARPENER.

SPECIFICATION formingpart of Letters Patent N0..653,720, dated July 17,1900. Application filed February 28, 1900. Serial No; 6,856. (No model.)

To all whom it may concern:

Be it known that I, ISAAC NORD WEITZEL, of Rochester, in the county ofMonroe and State of New York, have invented a new and useful Improvementin Pencil-Sharpeners, which improvement is fully set forth in thefollowing specification and shown in the accompanying drawings.

My invention is a device for sharpening or pointing lead-pencils of thatclass in which the sharpener is designed to be held within a case, andthe novelty resides in the peculiarities of construction, as will behereinafter more fully described, shown in the drawings, and thenparticularly pointed out in the claim.

Referring to the drawings, Figure 1 shows the complete device about fullsize. Fig. 2 is an end view seen as indicated byarrow in Fig. 1. Fig. 3is a longitudinal section of a part of the inclosing case, taken on thedotted line in Fig. 2. Fig. 4 is an elevation of the cutter-bodydetached seen as indicated by arrow in Fig. 3. Fig. 5 is an elevation ofthe cutter-body detached seen as indicated by arrow in Fig. 4. Fig. 6 isan axial section of the conical part of the cutter-body, taken on thedotted line in Fig. 2. Fig. 7 shows the inclosing case partly brokenaway and longitudinally sectioned, with the cutter body omitted.

A is a cylindrical inclosing case, of sheet metal or hard rubber orother suitable material, closed at the bottom-or lower end and open atthe top. Within this case the cutterbody B projects longitudinally, asclearly shown in Fig. 3. This cutter-body is formed with a knurledprojecting head a, adjacent to which is a cylindrical threaded part orband la, which when placed in the case A engages an internal threadedpart i, Fig. 7, of the case. The knurled head Ct is purposely madeslightly larger in diameter than the case A, as shown, and to projecttherefrom, so as to be more readily seized by the thumb and finger forthe purpose of turning the cutterbody B into or out of the case, and forthe purpose of symmetry and appearance I prefer to form the bottom plateor head 0 of the case of the same diameter as the head a, as ap= pearsin Fig. 1. This head 0 is knurled, as

shown, and forms a means by which the case may be firmly held by thefingers while the pencil is being sharpened. It projects beyond theperiphery of the case for this purpose.

The cutter-body Bis mainly conical in form,

as shown. The base of the inverted cone joins the band or cylindricalpart b, the latter being between the cone and the head a, the latterbeing larger and the base of the cone smaller in diameter than the bandI). The conical part is formed with a longitudinal slit or opening cl,Figs. 2 and 3, adjacent to which is a laterally-projecting flange or rib2, Figs. 4 and 5. To this flange is secured by simple fasteners f asteel blade g, having its edge It projecting slightly through saidopening d or overlapping the same. The end of the pencil to be sharpenedis inserted in the cone, the axes of the pencil and the cone coinciding,and by turning the pencil against the edge of the blade the wood isshaved off, the detached parts or shavings passing through the opening61 into the inclosing case, Where they are conveniently held andconfined. Ordi narily in pointing or sharpening pencils the shavings orchips cut therefrom drop onto the floor or desk or into the lap of theperson operating, thus making a litter objectionable and unsightly. Thisinvention is designed to avoid this objection, the use of the inventionrendering the operation of pointing a pencil cleanly and without litter.Furthermore, the case A constitutes a convenient handle by means ofwhich to control the inclosed cutter, the size of the case rendering itconvenient to grasp in the hand, and the blade g is made to face in adirection such that when turned against the pencil the tendency is toscrew the case more firmly onto the cutter-body B.

The cutting-blade g is removable from the body B for the purpose ofreedging or renewal. When at any time it is wished to clear theinclosing case of the accumulated shavings or parts out from pencils,the body B isunscrewed from the case for the purpose, the case thenbeing open and clear at its up per end, as appears in Fig. 7.

What I claim as my invention is- .As an improved article of manufacturea pocket pencil-sharpener, consisting of a case closed at one end byacap projecting beyond the periphery of the case and roughened,theopposite end of the said case being interiorly threaded, and acutter-body conical in form of less length than said case and having acutting-blade and a cylindrical exteriorly-r threaded portion near itsouter end engaging the interior threads of the case, and having 10 aflange projecting beyond the periphery of said case and roughened, allsubstantially as herein shown and described.

- In witness whereof I have hereunto set my hand, this 24th day ofFebruary, 1900, in the presence of two subscribing witnesses.

ISAAC NORD WEITZEL.

Witnesses:

Enos B. WHITMORE, M. L. WINSTON.

